20237265

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 36840960

約数和(自身を除く): 16603695

約数列:

[1, 3, 5, 9, 15, 31, 45, 89, 93, 155, 163, 267, 279, 445, 465, 489, 801, 815, 1335, 1395, 1467, 2445, 2759, 4005, 5053, 7335, 8277, 13795, 14507, 15159, 24831, 25265, 41385, 43521, 45477, 72535, 75795, 124155, 130563, 217605, 227385, 449717, 652815, 1349151, 2248585, 4047453, 6745755, 20237265]

約数ペア:

[(1, 20237265), (3, 6745755), (5, 4047453), (9, 2248585), (15, 1349151), (31, 652815), (45, 449717), (89, 227385), (93, 217605), (155, 130563), (163, 124155), (267, 75795), (279, 72535), (445, 45477), (465, 43521), (489, 41385), (801, 25265), (815, 24831), (1335, 15159), (1395, 14507), (1467, 13795), (2445, 8277), (2759, 7335), (4005, 5053)]